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Cle-Line C23811 double-end drill bit, black oxide finish, split point 135 degrees

Cle-Line

Cle-Line C23811 135 Degree Double End Drill Bit 1815 Steam Oxide HSS

SKU CH-F82J-FTQR6

A #30 double-end drill bit with a 135-degree split point made from steam-oxide high-speed steel for wire-size holes

  • Product typeDrill Bits
  • Split-point tip starts on contact for accurate holes
  • 135-degree angle reduces thrust needed in hard materials
  • Double-ended design gives two cutting edges per bit
  • Steam oxide finish resists wear and chip welding
  • High-speed steel construction handles high drilling temperatures

Cle-Line C23811 Double-End Drill Bit

The Cle-Line C23811 is a high-speed steel drill bit with a 135-degree split point designed for precision drilling in metal. It targets machinists and technicians who need a durable bit for repetitive hole-making tasks.

Sustained Load Performance with Steam Oxide Finish

The steam oxide surface treatment helps retain lubricant and reduces friction during extended drilling cycles. High-speed steel construction maintains hardness at elevated temperatures, allowing the bit to resist wear when used continuously in ferrous materials.

Installation and Common Issues

The 3.26 mm shank diameter fits standard drill chucks and quick-change adapters without modification. Split-point geometry minimises walking at the start of the cut, though excessive feed pressure can still cause premature tip wear or breakage in harder alloys.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $1.86
Cheaper than about 98% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLE-LINE
Product typeDrill Bits

Questions about this item

How hot does the 135-degree split-point HSS bit get during extended drilling?

High-speed steel with a 135-degree split point dissipates heat efficiently during continuous use; the steam oxide finish reduces friction and helps keep temperatures manageable in wire-gauge drilling.

What chuck size is needed for the 3.26 mm shank?

A standard 1/4-inch or 3 mm drill chuck will grip the 3.26 mm shank securely; no special collet or adapter is required for common corded or cordless drills.

Will the #30 wire-size bit work in older 1/4-inch chuck drills?

Yes, the 3.26 mm shank fits legacy 1/4-inch chucks without modification, and the 1/2-inch flute length is compatible with standard drill depths on older machines.

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